1. The problem statement, all variables and given/known data Are the accelerations due to gravity and the centripetal force at the equator of the earth in the same direction? Im picturing a stationary object at the equator of the earth, going around in uniform circular motion due to the earths rotation. The centripetal acceleration would point directly inwards into the earth at all points in the circular rotation, and gravity would also point in the same direction. This is how I am visualizing it. I have read that the accelerations oppose each other, but I cannot picture why. 2. Relevant equations 3. The attempt at a solution This part of a physics problem that has already been solved, I'm just trying to understand it better.